Improvement in water-wheel governors



tuent 11 twg J. A. WHITMAN, or AUBURN, MAINE..

Letters Patent No. 96,522, dated November 2, 1869.

IMPROVEMENT IN WATER-WHEEL GOVERORS.

To all whom it may concern Beit known that I, J. A.,WHITMAN,of Auburn,in the county of Androscoggim and 'State of Maine, have invented anewand improved Water-Wheel Governor; and I do he'reby declare that thefollowing is a full, clear, and exact description thereof, which willenable those skilled in the art to make and use the same, referencebeing vhad to the accompanying drawings, forming part of thisspeciication.

' The object of this invention is to provide certain improvements ingovernors, whereby a greater and more prompt movement of the gate may beeffected by the changes of the governor than can be done with those nowin use.

The invention -consists of a combination, with the driving-mechanism forthe governor, the gate-operating devices, and the governor, of adouble-acting vibrating pawl, under an arrangement whereby it is changedto work'the ratchet connected with the gateoperating devices either way,the said pawl being worked by the directiaction of the governor-drivingmechanism, thereby relieving the governor of all labor, except thechanging of the pawl.

The invention also comprises an improved construction of the governor,whereby the `resistance of the 'A air upon a pair of pendent hingedrevolving wings is imade use ot', mainly for working a.vertically-sliding hub on a revolving spindle, to obtain the requiredreciprocating motion. v

Figure 1. represents a side elevation of my improved governor, partlysectioned, and

Figure 2 represents an end elevation of the same.

Similar letters of reference indicate corresponding parts. l

A represents the driving-shaft, for operating the governor. It may beoperated by a belt, or other means, from the ihiving-shaft of thewater-wheel, in the usual way.

It is provided with a crank, B, with an adj ustablel pin, C. This pintakes into a slotted rocker-arm, I), vibrating on the shaft E, of aratchet-Wheel, F, having teeth adapted for being worked in eitherdirection, and connecting in any approved way withV the'waterwheel gate,for opening or closing it..

In this case, I have represented a train, G, of gear- 'wheels for thispurpose.

His a double-acting pawl or dog, pivoted centrally, in respect of itslength, to the vibrating arm D, so as to work above the face of thewheel F. One end is weighted, and the other is providedwith abentspring,

I, the free end of which rises above the other parts' Aof the pawl, soas to be acted upon by the free end of a vibrating arm, K,pivotedadjustably at L, and suspended at its free ends by a rod, M, fromthe recipro The Schedule referred to in these Letters Patent and makingpart of the naine.

wheel F, and being moved back 'and forth bythe crank B and arm D, itwill turn the wheel to the right, and close` the gate until the motionslackens, so that the sleeve falls and allows the arm K to pass downupon the spring I, so as to disengage the pawl VH from the wheel, which,so long as the motion does not thither slacken, will hold thesaid'pawlentirely movement of the arm K will carry the other end of itwill be turned to the left, and the gate thereby opened again, to admitan increased volume of water, and the speed will be thereby increasedagain.

It will be seen that by this arrangement, the labor of working the gateis taken entirely oi from the `governor, which being only required tovibrate, the pawl does not encounterr such resistance as to preventitv-from `working quickly, and that the gat-e, heilig worked by thepositive action ot' the' driving-shaft, is not liable to fail ofbeingmoved.

My improvement in the construction of the govlt, oscillating shafts S,and cranked connections T the said shafts being supported, horizontally,in long bearings, V, at thetop of theshaft'W, so as to be revolved withit, but free to turn in the said bearings under the resisting action ofthe air on the wings, aided also, to some extent, by centrifugal force.

ernor-sleeve or yoke is arranged for changing the pawl upon the saidratchet-wheel for working itin opposite directions, all substantially asspecified.'

2. The combination, with the sleeve X` of a governor, of the pendentwings T, crank-shaftsS, and suitable connecting-rods M, allsubstantially as specied.

The above speciiication of my invention signed by me, this 5th day ofAugust, 1869. A

. J. A. WHITMAN,

Witnesses GEO. W. MABEE, ALEX. E., ROBERTS.

out of action with the wheel, -leaving it at rest, but if the motioncontinues to slacken, the further downward.

the pawldown into action with the wheel, whereupon n ernor consistsinthe arrangement of the pendent wings thereof with the rods U, forworking the sleeve X, l

The cranks T are set at angles sufficiently less than v ing vibratingmotion to the .pawl-arni, when .the gov-

